click below
click below
Normal Size Small Size show me how
Weather Ch. 3
Air Masses and Fronts
Term | Definition |
---|---|
Air Mass | A huge body of air that has similar temperature, pressure, and humidity throughout. |
Tropical (Air Mass) | A warm air mass that forms in the tropics and has low air pressure. |
Polar (Air Mass) | A cold air mass that forms north of 50° north latitude or south of 50° south latitude and has high air pressure. |
Maritime (Air Mass) | A humid air Mass that forms over oceans. |
Continental (Air Mass) | A dry air Mass that forms over land. |
Front | The area where air masses meet and do not mix. |
Occluded | Cut off, as the warm air Mass at an occluded front is cut off from the ground by cooler air beneath it. |
Cyclone | A high-pressure center of dry air. |
Anticyclone | A high-pressure center of dry air. |